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Agile Software Architecture

Agile Software Architecture
Chapter 10. Architecture-Centric Testing for Security: An Agile Perspective

by Sarah Al-Azzani,Ahmad Al-Natour,Rami Bahsoon

  • Publisher : Elsevier Inc. Chapters
  • Release : 2013-11-27
  • Pages : 432
  • ISBN : 0128070307
  • Language : En, Es, Fr & De
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Verifying the security posture as a system evolves is indispensable for building deployable software systems. Traditional security testing lacks flexibility in (1) providing early feedback to the architect on the ability of the software to predict security threats so that changes are made before the system is built, (2) responding to changes in user and behavior requirements that could affect the security of software, and (3) offering real design fixes that do not merely hide the symptoms of the problem (i.e., patching). We motivate the need for an architecture-level testing for security grounded on incremental and continuous refinements to support agile principles. We use architecture as an artifact for initiating the testing process for security through subsequent and iterative refinements. We extend the use of implied scenario to reveal undesirable behavior caused by ambiguities in users’ requirements and we analyze detection their security implications. This approach demonstrates how architecture-centric evaluation and analysis can assist in securing systems developed using an agile development cycle. We apply this approach to a case study to evaluate the security of identity management architectures. We reflect on the effectiveness of this approach in detecting vulnerable behaviors and the cost-effectiveness of refining the architecture before vulnerabilities are built into the system.

Agile Software Architecture

Agile Software Architecture
Chapter 11. Supporting Agile Software Development and Deployment in the Cloud: A Multitenant, Multitarget Architecture

by Antonio Rico,Manuel Noguera,José Luis Garrido,Kawtar Benghazi,Lawrence Chung

  • Publisher : Elsevier Inc. Chapters
  • Release : 2013-11-27
  • Pages : 432
  • ISBN : 0128070315
  • Language : En, Es, Fr & De
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Running a dedicated instance of a software application can be burdensome to a customer if it involves a large amount of memory and processing overhead or a licensing fee or if the customer is a small company. Multitenancy (MT) architectures (MTAs) allow for multiple customers (i.e., tenants) to be consolidated into the same operational system, hence reducing the overhead via amortization over several customers. Lately, MTAs are drawing increasing attention because MT is regarded as an essential attribute of cloud computing and its new software delivery model, Software as a Service. In a moment of debate about the coexistence between architecture and agility, we introduce in this chapter a multitenancy, multitarget architecture (MT2A). MT2As are an evolution of traditional MTAs that reduce the various overhead by providing multiple services instead of a single service. In MT2As, there are new components added to the corresponding MTAs to manage the (now possibly) multiple services. MT2A is intended to support traditional agile development, as well as rapid deployment, by enabling the reuse of common components of the architecture. In this chapter, we also present an implementation of the architecture through an MT2 system called Globalgest.

Agile Software Architecture

Agile Software Architecture
Chapter 5. Architecture Decisions: Who, How, and When?

by Jan Salvador van der Ven,Jan Bosch

  • Publisher : Elsevier Inc. Chapters
  • Release : 2013-11-27
  • Pages : 432
  • ISBN : 0128070250
  • Language : En, Es, Fr & De
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The way in which architectural decisions are made changes when more agile development methods are used. This chapter focuses on architectural decisions and how they are made in industrial settings. From our literature research and experience, we have constructed three axes on which the architectural decision process of projects or companies can be projected. We evaluate this framework with five industrial case studies in which we have participated. In all of the cases, the differences between two points in time (phases) were evaluated. These differences helped us identify what aspects influence the efficiency of the project/company. The presented Triple-A Framework can be used in other projects to help locate places where the architectural process can be improved when the agility of a project changes.

Agile Software Architecture

Agile Software Architecture
Chapter 15. Architecture as a Key Driver for Agile Success: Experiences at Aviva UK

by Ben Isotta-Riches,Janet Randell

  • Publisher : Elsevier Inc. Chapters
  • Release : 2013-11-27
  • Pages : 432
  • ISBN : 0128070358
  • Language : En, Es, Fr & De
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Large enterprise organizations are increasingly turning to the use of agile approaches for their information technology (IT) development and are encountering a range of challenges that were not faced by the early, usually smaller, agile adopters. Enterprise-scale organizations frequently have complex organizational structures and complex IT estates, including a mix of legacy and modern applications. Both of these attributes have a negative impact on the ease with which agile principles and practices can be applied. This chapter describes the experiences of Aviva UK during our early agile transformation journey. We describe the challenges that we faced, focusing particularly on those relating to our IT architecture, and we discuss the three architecture strategies that we put in place to drive success: These strategies have been developed based on both our own experience and the input and experience of agile consultants .We believe that they will be key drivers for success in any large corporate organization with an IT estate that includes both legacy and modern applications.

Lean Architecture

Lean Architecture
for Agile Software Development

by James O. Coplien,Gertrud Bjørnvig

  • Publisher : John Wiley & Sons
  • Release : 2011-01-06
  • Pages : 376
  • ISBN : 0470970138
  • Language : En, Es, Fr & De
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More and more Agile projects are seeking architectural roots as they struggle with complexity and scale - and they're seeking lightweight ways to do it Still seeking? In this book the authors help you to find your own path Taking cues from Lean development, they can help steer your project toward practices with longstanding track records Up-front architecture? Sure. You can deliver an architecture as code that compiles and that concretely guides development without bogging it down in a mass of documents and guesses about the implementation Documentation? Even a whiteboard diagram, or a CRC card, is documentation: the goal isn't to avoid documentation, but to document just the right things in just the right amount Process? This all works within the frameworks of Scrum, XP, and other Agile approaches

Exam Prep for: Agile Software Architecture

Exam Prep for: Agile Software Architecture
A Book

by Anonim

  • Publisher : Unknown Publisher
  • Release : 2021
  • Pages : 329
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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Agile Software Architecture

Agile Software Architecture
Chapter 1. Making Software Architecture and Agile Approaches Work Together: Foundations and Approaches

by Muhammad Ali Babar

  • Publisher : Elsevier Inc. Chapters
  • Release : 2013-11-27
  • Pages : 432
  • ISBN : 0128070218
  • Language : En, Es, Fr & De
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Software architecture (SA) is one of the most significant areas of research and practice in software engineering. It has been shown that getting architecture of large-scale complex systems right is not only extremely important but hugely challenging. The increasing popularity and adoption of Agile Software Development (ASD) methods have brought architecture-centric methods and practices into question as agile followers tend to perceive architecture in the context of plan-driven software development. It is widely recognized that SA needs sufficient attention for successful development and evolution of software-intensive systems and services irrespective of the software development paradigm. Given the nature of the discipline, SA methods and approaches tend to be effort-intensive and heavyweight for certain kinds of projects. There is an increasing interest in finding ways to apply architecture-centric principles and practices in an Agile fashion—Agile architecting. A good understanding of architectural principles and approaches is a prerequisite to agile architecting. The aim of this chapter is to briefly describe the fundamental concepts, principles, and practices of architecture-centric approaches. These concepts, principles, and practices are expected to provide a reader with sufficient understanding of different aspects of SA and its related methods to combine them with ASD methods. We start with a brief discussion of the points that make architecture and agile approaches seemingly incompatible. Then we present and discuss some of the key aspects of architecture-centric approaches and techniques that need to be considered for use in ASD projects. We also provide an overview of some of the key practices that have been recommended for successfully integrating architecture-centric approaches in ASD for developing large-scale, software-intensive systems.

Agile Software Architecture

Agile Software Architecture
Chapter 3. Refactoring Software Architectures

by Michael Stal

  • Publisher : Elsevier Inc. Chapters
  • Release : 2013-11-27
  • Pages : 432
  • ISBN : 0128070234
  • Language : En, Es, Fr & De
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This chapter describes how to systematically prevent software architecture erosion by applying refactoring techniques. Software architecture modifications are common rather than the exception in software development. Modifications come in different flavors, such as redefining or adding requirements, changing infrastructure and technology, or causing changes by bugs and incorrect decisions. But no matter where these changes originate, they need special attention from software architects. Otherwise, if software architects merely focus on adding new features—(changes or extensions that by themselves might not be adequate), design erosion will be the final result. In a systematic approach, software architects evaluate the existing software design before adding new artifacts or changing existing ones. Whenever they identify architecture problems, they immediately resolve architectural issues, thus assuring high quality and sustainability. Software architecture refactoring enables such iterative architecture improvement. It consists of indentifying problems, applying the right refactorings, and testing the results. Architecture refactoring is often combined with code refactoring activities to add the best value. Refactoring patterns offer proven solutions for recurring architectural problems, hence providing a toolset to software engineers.

Agile Software Architecture

Agile Software Architecture
Chapter 13. Building a Platform for Innovation: Architecture and Agile as Key Enablers

by Peter Eeles

  • Publisher : Elsevier Inc. Chapters
  • Release : 2013-11-27
  • Pages : 432
  • ISBN : 0128070331
  • Language : En, Es, Fr & De
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Organizations must adapt to survive, and their ability to change and innovate is driven by two key enablers - architecture and agile. Based on practical experiences of working with several clients adopting both architecture and agile practices, the author sheds light on those factors that resulted in successful transformations and the creation of a platform for innovation. The author concludes that architecture and agile practices are complementary and that their successful introduction within an organization is not just technical in nature, but also requires a focus on people and appropriate techniques for managing organizational change.

Software Architecture

Software Architecture
9th European Conference, ECSA 2015, Dubrovnik/Cavtat, Croatia, September 7-11, 2015. Proceedings

by Danny Weyns,Raffaela Mirandola,Ivica Crnkovic

  • Publisher : Springer
  • Release : 2015-09-02
  • Pages : 382
  • ISBN : 3319237276
  • Language : En, Es, Fr & De
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This book constitutes the proceedings of the 9th European Conference on Software Architecture, ECSA 2015, held in Cavtat, Croatia in September 2015. The 12 full papers and 15 short papers presented together with three education and training papers in this volume were carefully reviewed and selected from 100 submissions. They are organized in topical sections named: adaptation; design approaches; decisions and social aspects; education and training; cloud and green; agile and smart systems; analysis and automation; services and ecosystems.

Agile Software Architecture

Agile Software Architecture
Chapter 9. Bridging User Stories and Software Architecture: A Tailored Scrum for Agile Architecting

by Jennifer Pérez,Jessica Díaz,Juan Garbajosa,Agustín Yagüe

  • Publisher : Elsevier Inc. Chapters
  • Release : 2013-11-27
  • Pages : 432
  • ISBN : 0128070293
  • Language : En, Es, Fr & De
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Agile architecting is a key issue to scale agile to develop large software systems. This chapter describes a set of mechanisms that make agile architecting feasible. These mechanisms are smoothly integrated in a tailored Scrum for agile architecting by (1) defining product requirements in terms of features by using feature pools and feature trees to provide the portfolio and roadmap visions of a product, (2) designing highly flexible architecture called working architecture, (3) bridging user stories and software architecture through features and design decisions as traceability mechanisms, and (4) systematically assisting agile practitioners by conducting change impact analysis of features through various iterations of the agile process. This tailored Scrum for agile architecting has been successfully put into practice to develop several projects, which have been deployed in a software factory set up in collaboration between the Technical University of Madrid (UPM) and the company Indra. In this chapter, one of these projects is used to illustrate how this tailored Scrum has been applied and how it can be adopted.

Agile Software Architecture

Agile Software Architecture
Chapter 8. Lightweight Architecture Knowledge Management for Agile Software Development

by Veli-Pekka Eloranta,Kai Koskimies

  • Publisher : Elsevier Inc. Chapters
  • Release : 2013-11-27
  • Pages : 432
  • ISBN : 0128070285
  • Language : En, Es, Fr & De
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Architecture knowledge management (AKM) aims to codify and maintain the architectural knowledge of a software system in a form that can be easily accessed by different stakeholders. Integrating AKM with an agile project management paradigm is a challenge because the agile philosophy downplays both plan-driven development and documentation. Yet, by integrating lightweight AKM practices with the process, agile software development could avoid maintenance and communication problems arising from scarce documentation. In this chapter, we introduce existing technologies that could be used as elements of lightweight AKM for agile software development and present possible models to integrate AKM with Scrum, which is the most popular agile approach in use today. In particular, we advocate the exploitation of architectural evaluations to collect architecturally significant information semiautomatically and the use of automated document generation to expose the contents of an architectural information repository in an easily accessible form. The proposed models are based on observed architecting work practices in industry and on interviews carried out in industry to identify the architectural information flow in real-life agile projects.

Agile Software Architecture

Agile Software Architecture
Chapter 7. Continuous Software Architecture Analysis

by Georg Buchgeher,Rainer Weinreich

  • Publisher : Elsevier Inc. Chapters
  • Release : 2013-11-27
  • Pages : 432
  • ISBN : 0128070277
  • Language : En, Es, Fr & De
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This chapter discusses software architecture analysis in the context of agile processes. Agile processes are characterized by incremental and interleaved activities and by a focus on continuous improvement and delivery. Most approaches to software architecture analysis, however, have been developed to be performed at dedicated points in the development process or as external evaluation activities and not as continuous activities throughout the development process. This chapter discusses continuous software architecture analysis (CSAA). It reviews important requirements for CSAA and outlines how CSAA is supported by current software architecture analysis approaches. It further presents experiences with an approach for continuous structural and conformance analysis and identifies future research challenges.

Software Architecture in Practice

Software Architecture in Practice
A Book

by Len Bass,Paul Clements,Rick Kazman

  • Publisher : Addison-Wesley
  • Release : 2012-09-25
  • Pages : 624
  • ISBN : 013294278X
  • Language : En, Es, Fr & De
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The award-winning and highly influential Software Architecture in Practice, Third Edition, has been substantially revised to reflect the latest developments in the field. In a real-world setting, the book once again introduces the concepts and best practices of software architecture—how a software system is structured and how that system’s elements are meant to interact. Distinct from the details of implementation, algorithm, and data representation, an architecture holds the key to achieving system quality, is a reusable asset that can be applied to subsequent systems, and is crucial to a software organization’s business strategy. The authors have structured this edition around the concept of architecture influence cycles. Each cycle shows how architecture influences, and is influenced by, a particular context in which architecture plays a critical role. Contexts include technical environment, the life cycle of a project, an organization’s business profile, and the architect’s professional practices. The authors also have greatly expanded their treatment of quality attributes, which remain central to their architecture philosophy—with an entire chapter devoted to each attribute—and broadened their treatment of architectural patterns. If you design, develop, or manage large software systems (or plan to do so), you will find this book to be a valuable resource for getting up to speed on the state of the art. Totally new material covers Contexts of software architecture: technical, project, business, and professional Architecture competence: what this means both for individuals and organizations The origins of business goals and how this affects architecture Architecturally significant requirements, and how to determine them Architecture in the life cycle, including generate-and-test as a design philosophy; architecture conformance during implementation; architecture and testing; and architecture and agile development Architecture and current technologies, such as the cloud, social networks, and end-user devices

Agile Processes in Software Engineering and Extreme Programming

Agile Processes in Software Engineering and Extreme Programming
9th International Conference, XP 2008, Limerick, Ireland, June 10-14, 2008, Proceedings

by Pekka Abrahamsson,Richard Baskerville,Kieran Conboy,Brian Fitzgerald,Lorraine Morgan,Xiaofeng Wang

  • Publisher : Springer Science & Business Media
  • Release : 2008-06-10
  • Pages : 258
  • ISBN : 3540682554
  • Language : En, Es, Fr & De
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The XP conference series established in 2000 was the first conference dedicated to agile processes in software engineering. The idea of the conference is to offer a unique setting for advancing the state of the art in the research and practice of agile processes. This year’s conference was the ninth consecutive edition of this international event. The conference has grown to be the largest conference on agile software development outside North America. The XP conference enjoys being one of those conferences that truly brings practitioners and academics together. About 70% of XP participants come from industry and the number of academics has grown steadily over the years. XP is more of an experience rather than a regular conference. It offers several different ways to interact and strives to create a truly collaborative environment where new ideas and exciting findings can be presented and shared. For example, this year’s open space session, which was “a conference within a conference”, was larger than ever before. Agile software development is a unique phenomenon from several perspectives.

Agile Software Development with Distributed Teams

Agile Software Development with Distributed Teams
Staying Agile in a Global World

by Jutta Eckstein

  • Publisher : Addison-Wesley
  • Release : 2013-07-15
  • Pages : 144
  • ISBN : 0133492397
  • Language : En, Es, Fr & De
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This is the digital version of the printed book (Copyright © 2010). All software projects face the challenges of diverse distances -- temporal, geographical, cultural, lingual, political, historical, and more. Many forms of distance even affect developers in the same room. The goal of this book is to reconcile two mainstays of modern agility: the close collaboration agility relies on, and project teams distributed across different cities, countries, and continents. In Agile Software Development with Distributed Teams, Jutta Eckstein asserts that, in fact, agile methods and the constant communication they require are uniquely capable of solving the challenges of distributed projects. Agility is responsiveness to change -- in other words, agile practitioners maintain flexibility to accommodate changing circumstances and results. Iterative development serves the learning curve that global project teams must scale. This book is not about how to outsource and forget your problems. Rather, Eckstein details how to carefully select development partners and integrate efforts and processes to form a better product than any single contributor could deliver on his or her own. The author de-emphasizes templates and charts and favors topical discussion and exploration. Practitioners share experiences in their own words in short stories throughout the book. Eckstein trains readers to be change agents, to creatively apply the concepts in this book to form a customized distributed project plan for success. Topics include: Understanding Distributed Development The Productivity Myth Ensuring Conceptual Integrity Trust and Mutual Respect Iterations and Releases Using Features to Steer the Development Effort Team Velocity Virtual Retrospectives Dispersed Synchronization Introducing Agility to Global Projects and much more

A Software Architecture Primer

A Software Architecture Primer
A Book

by John Reekie,Rohan McAdam,R. J. McAdam

  • Publisher : Software Architecture Primer
  • Release : 2006
  • Pages : 192
  • ISBN : 0646458418
  • Language : En, Es, Fr & De
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The authors present a fresh, pragmatic approach to the study of software architecture. This edition contains a series of chapters that introduce and develop an understanding of software architecture by means of careful explanation and elaboration of a range of key concepts. (Computer Books)

Relating System Quality and Software Architecture

Relating System Quality and Software Architecture
A Book

by Ivan Mistrik,Rami Bahsoon,Peter Eeles,Roshanak Roshandel,Michael Stal

  • Publisher : Morgan Kaufmann
  • Release : 2014-07-30
  • Pages : 420
  • ISBN : 0124171680
  • Language : En, Es, Fr & De
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System Quality and Software Architecture collects state-of-the-art knowledge on how to intertwine software quality requirements with software architecture and how quality attributes are exhibited by the architecture of the system. Contributions from leading researchers and industry evangelists detail the techniques required to achieve quality management in software architecting, and the best way to apply these techniques effectively in various application domains (especially in cloud, mobile and ultra-large-scale/internet-scale architecture) Taken together, these approaches show how to assess the value of total quality management in a software development process, with an emphasis on architecture. The book explains how to improve system quality with focus on attributes such as usability, maintainability, flexibility, reliability, reusability, agility, interoperability, performance, and more. It discusses the importance of clear requirements, describes patterns and tradeoffs that can influence quality, and metrics for quality assessment and overall system analysis. The last section of the book leverages practical experience and evidence to look ahead at the challenges faced by organizations in capturing and realizing quality requirements, and explores the basis of future work in this area. Explains how design decisions and method selection influence overall system quality, and lessons learned from theories and frameworks on architectural quality Shows how to align enterprise, system, and software architecture for total quality Includes case studies, experiments, empirical validation, and systematic comparisons with other approaches already in practice.

Disciplined Agile Delivery

Disciplined Agile Delivery
A Practitioner's Guide to Agile Software Delivery in the Enterprise

by Scott W. Ambler,Mark Lines

  • Publisher : IBM Press
  • Release : 2012
  • Pages : 513
  • ISBN : 0132810131
  • Language : En, Es, Fr & De
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The authoritative guide to DAD, IBM's disciplined approach to applying agile practices in enterprise scale projects. Integrate enterprise discipline with powerful, widely-used agile practices into a proven solution for the entire software lifecycle. Scale agile strategies for complex development challenges, without compromising agile's advantages.

Essential Software Architecture

Essential Software Architecture
A Book

by Ian Gorton

  • Publisher : Springer Science & Business Media
  • Release : 2011-04-27
  • Pages : 242
  • ISBN : 9783642191763
  • Language : En, Es, Fr & De
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Job titles like “Technical Architect” and “Chief Architect” nowadays abound in software industry, yet many people suspect that “architecture” is one of the most overused and least understood terms in professional software development. Gorton’s book tries to resolve this dilemma. It concisely describes the essential elements of knowledge and key skills required to be a software architect. The explanations encompass the essentials of architecture thinking, practices, and supporting technologies. They range from a general understanding of structure and quality attributes through technical issues like middleware components and service-oriented architectures to recent technologies like model-driven architecture, software product lines, aspect-oriented design, and the Semantic Web, which will presumably influence future software systems. This second edition contains new material covering enterprise architecture, agile development, enterprise service bus technologies, RESTful Web services, and a case study on how to use the MeDICi integration framework. All approaches are illustrated by an ongoing real-world example. So if you work as an architect or senior designer (or want to someday), or if you are a student in software engineering, here is a valuable and yet approachable knowledge source for you.